Improvement in machines for making key-boards for wood pavements



rentar D. comunes, r' ronTLAND, MAINE;-

Letters Patent- No. .109,591,-dated November 29, 1870.

IMPROVEMENT IN MACHINES FOR MAKING .KEY-BOARDS FOR WOOD PAVEMENTS.

The Schedule referred to in these Letters Patent and making parl: of thesame.

VTo all whom 'it'may concern l.Be it known that I, PERLEY 1). CUMMINGS,of

Iortland, in the county of yCumberland and State of 'I 1I/Iain'e, .haveinvented a new and Auseful Machine for Making Tongued Key-Boards forWooden Pave- "lnentsg and l hereby declare the following to 'be a full,clear, and exact description 'thereot',freference being had to theaccompanying drawing, in which- Plate 1, Figure 1, is a side elevation vFignreZis a top plan; and

Plate 2, iig. 1,- is an end view o1 same and l Figure 2-is an end viewofthe device for regulatin g the vdistance between the two horizontalcuttersor' saws'.

Same letters refer to like parts'.A The main shaft of the machine A is ahorizontal shaft, provided with six .band-wheels, B, O, D, E, F,

and Gr.

Nearthe otherend of the machine are the two inclined shafts H andI,having band-wheels K and L,1and upon their inner extremities theinclined cnttels M an`d N, converging toward each other.

The wheelsF and'L and C and K are connected by bands. Y

Beyond the shafts .H and I are the two vertical shafts O and P,containing band-wheels Q and R and .saws S and T respectively, the-sawsbeing fixed upon the upper extremities of said shafts, and in the sameplane with the upper edges of the cutters M and N;

' These shafts 0 and 1 arexed, each in a frame allowing lateral motion.

This motion is eliectedby the screws A' and B', the flames W and Yhaving horizontal slots in their outer edges,'.'throngh `which slots, UU, the screws V V are inserted into the frame of the machine, (see plate2, iig.

The wheels Q and E and D and E are banded to' gather, the belts beingturned to tbe'left'and right respectively. v

At the right of the end of the machine is the horizontal shaft C',having on its outer extremity the band-wheel 1)', and on its innerextremity the 'bev eled-gear E. d

This beveled-gear Ematches into the beveled-gear F np'on'the vert/icalshaft G. On the upper' part of the shaft Gr'is the toothed feedv H',(see plate 2, iig. 1.)

VThe wheels D'and B are banded together by a cross-belt.

The feeder H is rendered adjustable by means of the spring I', plate 1,iig 2. A

Opposite the feed H' is the roller K', while above the feed is theroller or guide Of.

The central and upper part of the machine is fur- 'nished with ahorizontal platform or table extending th'e length of the machine anddirectly beneath the feeder and 'roller H and K' and the saws Sand T.

The portion of theplatform over the cutters M and -N is movable, beinghinged orpivoted'at L'. f

This portion of the platform is slotted to allow an arc of the cutters Mand N to pass through the same.

Above and to the right of the 'cutters M and N are the independentrollers M M' and N N', the latter being rendered adjustable by springsplaced between 'the axes of the rollers and the frame of the machinev-Thc sides of the platform are also provided with the guides 1vl P',placed as. shown in plate 1 figs. 1 and 2.

1 have alrcady'applicdfor Letters Patent on an improved machine forcutting keyfwaysinblocks for wooden pavements. The object oftheabove-described machine is to provide a suitable device for cuttingkey-boards to tit the key-ways Ain the blocks and connect-the same.

In operating lthe machine, power is applied to the band-wheel Gr. f j

The board or plank of which the-key-board is to be manufactured isplaced on the platform bencntlrthc guide O', between the'feed H" and theroller K.

. It is carried by the feed in contact with the saws S and T, by whichan incision is made into each edge of the board.

The board is next carried over the cutters M and N which free the buterand lower portions of same, having on its lmversurlace adovetailed-shaped, tongue.

1t is then carried over the platform to the ,other end ofthe machine,where it may be removed.

1t is evident that a keyboard ofthe same shape could be produced bymeans of the cutters M and N alone, if increased in width, thus doingaway with the -saws S and-T; but the same could lee-donev only at theexpense of vloss of power and material.

Blythev above-described method not only is power saved, but the thinstrips thus removed can be utilized lin many ways, as for laths, &c.

Vhat I claim'as my invention', and desire tosecure by Letters Patent ofthe United States, is'.

' The combination .of the sawsA S and T, rollers* 'M'- M and N N', withthe converging cutters M and-N, substantially as described. Witnesses:PERLEY D. CUMMINGS.

WM. FRANKLIN SnAvnr.' GEORGE E. Bun).

